palintest Green Drop Kit Instructions Manual page 27

4.2.2 To Calibrate pH:-
1 If necessary, press the MODE key
to select pH mode. The pH
indicator appears in the upper right
hand corner of the display.
2 Rinse the probe thoroughly with
deionised water. Do not wipe the
probe; this causes a build-up of
electrostatic charge on the glass
surface.
3 Dip the probe into the calibration
buffer. The end of the probe must
be completely immersed into the
sample. Stir the probe gently to
create a homogeneous sample.
NOTE: The temperature element is in the
conductivity cell. For temperature
compensated readings, dip the conductivity
cell into the calibration buffer as well.
4 Press CAL/MEAS to enter pH
calibration mode. The CAL
indicator will be shown. The
primary display will show the
measured reading while the
smaller secondary display will